/* Tra cứu / Login — tokens: ~/assets/css/tax3s-tokens.css */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.tracuu-page {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    font-family: var(--tx-font);
    font-size: var(--tx-fs-base, 15px);
    line-height: var(--tx-lh, 1.55);
    color: var(--tc-text);
    background: var(--tc-bg);
    display: flex;
    flex-direction: column;
    position: relative;
}

/* ── Watermark ── */
.tc-watermark {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.tc-watermark img {
    width: min(72vw, 480px);
    max-height: 72vh;
    height: auto;
    object-fit: contain;
    opacity: 0.07;
    filter: none;
    user-select: none;
    -webkit-user-drag: none;
}

.tc-header,
.tc-main,
.tc-footer {
    position: relative;
    z-index: 1;
}

/* ── Header ── */
.tc-header {
    background: #fff;
    color: var(--tc-text);
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--tc-border);
    box-shadow: none;
}

html[data-theme="dark"] .tc-header {
    background: var(--tc-surface);
    border-bottom-color: var(--tc-border);
}

.tc-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 12% 88%, rgba(15, 39, 64, 0.06) 0%, transparent 42%),
        radial-gradient(circle at 88% 12%, rgba(90, 143, 158, 0.07) 0%, transparent 38%);
    pointer-events: none;
}

.tc-header-inner {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 24px 48px;
}

.tc-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.tc-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    text-decoration: none;
    color: inherit;
    transition: opacity .2s;
}

.tc-brand:hover {
    opacity: .92;
    color: inherit;
    text-decoration: none;
}

.tc-topbar-nav {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.tc-theme-picker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    margin: 0;
}

.tc-theme-picker-label {
    font-size: var(--tx-fs-sm, 13px);
    font-weight: 600;
    color: var(--tc-muted);
    white-space: nowrap;
}

.tc-theme-picker select {
    height: 40px;
    min-width: 132px;
    padding: 0 28px 0 12px;
    border: 1px solid var(--tc-border);
    border-radius: 10px;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E") no-repeat right 10px center;
    background-size: 12px;
    color: var(--tc-text);
    font-family: inherit;
    font-size: var(--tx-fs-sm, 13px);
    font-weight: 500;
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(15, 39, 64, 0.06);
}

.tc-theme-picker select:focus {
    outline: none;
    border-color: var(--tc-primary);
    box-shadow: 0 0 0 0.2rem rgba(30, 64, 175, 0.18);
}

html[data-theme="dark"] .tc-theme-picker select {
    background-color: #1e1e1e;
    border-color: #333333;
    color: #e0e0e0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}


.tc-btn-nav {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: var(--tx-fs-base);
    font-weight: 600;
    text-decoration: none;
    border-radius: 10px;
    transition: background .2s, transform .15s, box-shadow .2s, filter .2s;
    white-space: nowrap;
}

.tc-btn-nav svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
    flex-shrink: 0;
}

.tc-btn-home {
    background: #fff;
    border: 1px solid rgba(15, 39, 64, 0.28);
    color: var(--tc-primary-dark);
    box-shadow: 0 2px 8px rgba(15, 39, 64, 0.06);
}

.tc-btn-home:hover {
    background: var(--tc-bg-alt);
    color: var(--tc-primary);
    text-decoration: none;
    transform: translateY(-1px);
    border-color: var(--tc-primary);
}
html[data-theme="dark"] .tc-btn-home {
    background: #1a2330;
    border-color: rgba(255, 255, 255, 0.18);
    color: #e8edf3;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
}

html[data-theme="dark"] .tc-btn-home:hover {
    background: #243040;
    color: #fff;
    border-color: rgba(107, 156, 201, 0.55);
    text-decoration: none;
}
/* Dark — input fields */
html[data-theme="dark"] .tc-input-wrap input,
html[data-theme="dark"] .tc-login-form .tc-input-wrap input,
html[data-theme="dark"] input[type="text"],
html[data-theme="dark"] input[type="password"],
html[data-theme="dark"] input[type="email"],
html[data-theme="dark"] input[type="search"],
html[data-theme="dark"] textarea,
html[data-theme="dark"] select {
    background-color: #121820 !important;
    color: #e8edf3 !important;
    border-color: #2f3c4c !important;
    caret-color: #e8edf3;
}

html[data-theme="dark"] .tc-input-wrap input::placeholder,
html[data-theme="dark"] input::placeholder,
html[data-theme="dark"] textarea::placeholder {
    color: #9aa8b5 !important;
    opacity: 1;
}

html[data-theme="dark"] .tc-input-wrap input:focus,
html[data-theme="dark"] input:focus,
html[data-theme="dark"] textarea:focus,
html[data-theme="dark"] select:focus {
    border-color: #6b9cc9 !important;
    box-shadow: 0 0 0 3px rgba(107, 156, 201, 0.22) !important;
    outline: none;
}

html[data-theme="dark"] .tc-input-wrap svg {
    fill: #9aa8b5 !important;
}

html[data-theme="dark"] .tc-input-wrap input:-webkit-autofill,
html[data-theme="dark"] .tc-input-wrap input:-webkit-autofill:hover,
html[data-theme="dark"] .tc-input-wrap input:-webkit-autofill:focus,
html[data-theme="dark"] input:-webkit-autofill,
html[data-theme="dark"] input:-webkit-autofill:hover,
html[data-theme="dark"] input:-webkit-autofill:focus {
    -webkit-text-fill-color: #e8edf3 !important;
    caret-color: #e8edf3;
    box-shadow: 0 0 0 1000px #121820 inset !important;
    transition: background-color 99999s ease-out;
    border-color: #2f3c4c !important;
}

.tc-btn-login {
    background: var(--tc-gradient-accent);
    color: #fff;
    border: none;
    box-shadow: var(--tc-shadow-accent);
}

.tc-btn-login:hover {
    filter: brightness(1.05);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
    box-shadow: 0 8px 22px rgba(90, 143, 158, 0.35);
}

.tc-brand-logo {
    flex-shrink: 0;
    line-height: 0;
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
    padding: 6px 14px;
    border: 1px solid rgba(15, 39, 64, 0.16);
    box-shadow: 0 2px 12px rgba(0, 51, 102, 0.08);
}

.tc-brand-logo img {
    display: block;
    height: 52px;
    width: auto;
    max-width: min(100%, 320px);
    object-fit: contain;
}

.tc-brand-text h1 {
    margin: 0;
    font-size: var(--tx-fs-2xl);
    font-weight: 700;
    letter-spacing: -.02em;
    background: var(--tc-gradient-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.tc-brand-text span {
    font-size: var(--tx-fs-sm, 13px);
    font-weight: 400;
    color: var(--tc-muted);
}

.tc-hero {
    position: relative;
    z-index: 1;
    background: var(--tc-gradient-brand);
    color: #fff;
    border-radius: 16px;
    padding: 1.5rem 1.75rem;
    box-shadow: var(--tc-shadow);
    overflow: hidden;
}

.tc-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 90% 20%, rgba(107, 158, 174, 0.14) 0%, transparent 42%),
        radial-gradient(circle at 5% 80%, rgba(77, 166, 255, 0.12) 0%, transparent 45%);
    pointer-events: none;
}

.tc-hero h2,
.tc-hero p {
    position: relative;
    z-index: 1;
}

.tc-hero h2 {
    margin: 0 0 10px;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    letter-spacing: -.03em;
    line-height: 1.25;
    color: #fff;
}

.tc-hero p {
    margin: 0;
    max-width: 560px;
    font-size: var(--tx-fs-base);
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.92);
}

/* ── Main ── */
.tc-main {
    flex: 1;
    max-width: 1100px;
    width: 100%;
    margin: -28px auto 0;
    padding: 0 24px 48px;
    position: relative;
    z-index: 1;
}

/* ── Search card ── */
.tc-search-card {
    background: var(--tc-surface);
    border-radius: var(--tc-radius-lg);
    box-shadow: var(--tc-shadow-lg);
    padding: 28px 32px;
    border: 1px solid var(--tc-border);
    margin-bottom: 20px;
}

.tc-search-card h3 {
    margin: 0 0 6px;
    font-size: var(--tx-fs-lg);
    font-weight: 700;
    color: var(--tc-primary-deep);
}

.tc-search-card .tc-hint {
    margin: 0 0 20px;
    font-size: var(--tx-fs-md, 14px);
    color: var(--tc-muted);
}

.tc-search-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.tc-input-wrap {
    flex: 1;
    min-width: 220px;
    position: relative;
}

.tc-input-wrap svg {
    position: absolute;
    right: 12px;
    left: auto;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    fill: var(--tc-muted);
    pointer-events: none;
}

.tc-input-wrap input {
    width: 100%;
    padding: 8px 36px 8px 12px;
    font-size: var(--tx-fs-md, 14px);
    border: 1px solid var(--tc-border);
    border-radius: 8px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
    font-family: inherit;
    letter-spacing: .02em;
    background: #fff;
    min-height: 36px;
}

.tc-input-wrap input:focus {
    border-color: var(--tc-primary-light);
    box-shadow: 0 0 0 3px rgba(15, 39, 64, .12);
}

.tc-input-wrap input::placeholder {
    letter-spacing: normal;
    color: #94a3b8;
}

.tc-btn-search {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    font-size: var(--tx-fs-md, 14px);
    font-weight: 600;
    color: #fff;
    background: var(--tc-gradient-accent);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    min-height: 36px;
    transition: transform .15s, box-shadow .2s, filter .2s;
    font-family: inherit;
    white-space: nowrap;
    box-shadow: var(--tc-shadow-accent);
}

.tc-btn-search:hover {
    transform: translateY(-1px);
    filter: brightness(1.05);
    box-shadow: 0 8px 26px rgba(90, 143, 158, .38);
}

.tc-btn-search:active { transform: translateY(0); }

.tc-btn-search svg { width: 16px; height: 16px; fill: currentColor; }

.tc-btn-search.is-loading {
    pointer-events: none;
    opacity: .85;
}

.tc-format-note {
    margin-top: 16px;
    padding: 12px 16px;
    background: linear-gradient(90deg, rgba(15, 39, 64, 0.05), rgba(90, 143, 158, 0.06));
    border-radius: var(--tc-radius);
    font-size: var(--tx-fs-sm, 13px);
    color: var(--tc-muted);
    border-left: 4px solid var(--tc-accent);
}

.tc-format-note code {
    background: var(--tc-bg-alt);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: var(--tx-fs-sm);
    color: var(--tc-primary-dark);
}

.tc-format-note code strong {
    color: var(--tc-accent-dark);
}

/* ── Alert ── */
.tc-alert {
    margin-top: 24px;
    padding: 16px 20px;
    border-radius: var(--tc-radius);
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: var(--tx-fs-base);
}

.tc-alert svg { flex-shrink: 0; width: 22px; height: 22px; margin-top: 1px; }

.tc-alert-error {
    background: var(--tc-danger-bg);
    color: #842029;
    border: 1px solid #f5c2c7;
}

.tc-alert-error svg { fill: var(--tc-danger); }

/* ── Result panel ── */
.tc-result {
    margin-top: 28px;
    animation: tcFadeIn .4s ease;
}

@keyframes tcFadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

.tc-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.tc-result-header h3 {
    margin: 0;
    font-size: var(--tx-fs-2xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--tc-primary-deep);
}

.tc-badge {
    display: inline-block;
    padding: 4px 12px;
    font-size: var(--tx-fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    border-radius: 20px;
    background: rgba(15, 39, 64, .1);
    color: var(--tc-primary-dark);
}

.tc-badge-pvc {
    background: rgba(90, 143, 158, .12);
    color: var(--tc-accent-dark);
}

.tc-badge-tncn {
    background: rgba(15, 39, 64, .12);
    color: var(--tc-primary-deep);
}

/* ── TNCN HTML preview ── */
.tc-tncn-viewer {
    background: var(--tc-surface);
    border-radius: var(--tc-radius-lg);
    box-shadow: var(--tc-shadow);
    overflow: hidden;
    border: 1px solid var(--tc-border);
    scroll-margin-top: 24px;
}

.tc-tncn-preview-wrap {
    padding: 16px;
    overflow-x: auto;
    background: var(--tc-bg-alt);
}

.tc-tncn-preview-wrap .tx-tncn-preview {
    margin: 0 auto;
}

.tc-tncn-preview-wrap .print-page {
    box-shadow: 0 4px 24px rgba(15, 23, 42, .12);
}

.tc-info-card {
    background: var(--tc-surface);
    border-radius: var(--tc-radius-lg);
    box-shadow: var(--tc-shadow);
    padding: 24px 28px;
    margin-bottom: 20px;
    border: 1px solid var(--tc-border);
}

.tc-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px 24px;
}

.tc-info-item label {
    display: block;
    font-size: var(--tx-fs-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    color: var(--tc-muted);
    margin-bottom: 4px;
}

.tc-info-item span {
    font-size: var(--tx-fs-base);
    font-weight: 500;
    color: var(--tc-text);
    word-break: break-word;
}

.tc-info-item span.tc-mono {
    font-family: "Cascadia Code", "Consolas", monospace;
    letter-spacing: .06em;
    color: var(--tc-primary-dark);
}

/* ── Actions ── */
.tc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.tc-btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    font-size: var(--tx-fs-md, 14px);
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: transform .15s, box-shadow .2s, filter .2s;
    font-family: var(--tx-font);
    min-height: 36px;
}

.tc-btn-download svg { width: 16px; height: 16px; }

.tc-btn-pdf {
    color: #fff;
    background: linear-gradient(135deg, #e63946 0%, #c1121f 100%);
    box-shadow: 0 4px 14px rgba(230, 57, 70, .3);
}

.tc-btn-pdf:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(230, 57, 70, .4);
    color: #fff;
}

.tc-btn-xml {
    color: #fff;
    background: var(--tc-gradient-brand);
    box-shadow: 0 4px 14px rgba(15, 39, 64, 0.25);
}

.tc-btn-xml:hover {
    transform: translateY(-2px);
    filter: brightness(1.06);
    box-shadow: 0 6px 20px rgba(15, 39, 64, 0.32);
    color: #fff;
}

.tc-btn-end {
    color: var(--tc-text);
    background: var(--tc-surface);
    border: 1px solid var(--tc-border);
    box-shadow: 0 2px 8px rgba(26, 35, 50, .08);
    cursor: pointer;
    font-family: inherit;
}

.tc-btn-end:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(15, 39, 64, 0.12);
    color: var(--tc-primary-dark);
    border-color: var(--tc-primary-light);
}

.tc-download-app-card {
    margin-top: 0;
    border-top: 3px solid transparent;
    border-image: linear-gradient(90deg, var(--tc-primary), var(--tc-accent-gold)) 1;
}

.tc-btn-app {
    color: #fff;
    font-weight: 700;
    background: var(--tc-gradient-accent);
    box-shadow: var(--tc-shadow-accent);
    border: none;
}

.tc-btn-app:hover {
    transform: translateY(-2px);
    filter: brightness(1.05);
    box-shadow: 0 8px 24px rgba(90, 143, 158, 0.38);
    color: #fff;
    text-decoration: none;
}

/* ── PDF viewer ── */
.tc-pdf-viewer {
    background: var(--tc-surface);
    border-radius: var(--tc-radius-lg);
    box-shadow: var(--tc-shadow);
    overflow: hidden;
    border: 1px solid var(--tc-border);
    scroll-margin-top: 24px;
}

.tc-pdf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    background: var(--tc-bg-alt);
    border-bottom: 1px solid var(--tc-border);
    font-size: var(--tx-fs-md, 14px);
    color: var(--tc-muted);
}

.tc-pdf-toolbar strong { color: var(--tc-text); }

.tc-pdf-frame-wrap {
    position: relative;
    width: 100%;
    min-height: 720px;
    background: #525659;
}

.tc-pdf-frame-wrap iframe {
    display: block;
    width: 100%;
    height: 820px;
    border: none;
}

/* ── Footer ── */
.tc-footer {
    margin-top: auto;
    padding: 28px 24px;
    text-align: center;
    font-size: var(--tx-fs-sm, 13px);
    color: rgba(255, 255, 255, 0.75);
    background: linear-gradient(180deg, var(--tc-primary-deep) 0%, #0a1628 100%);
}

.tc-footer a {
    color: var(--tc-accent-light);
    text-decoration: none;
    font-weight: 500;
}

.tc-footer a:hover {
    color: var(--tc-accent-gold);
    text-decoration: underline;
}

/* ── Login page ── */
.tc-main-narrow {
    max-width: 520px;
}

.tc-login-card {
    margin-left: auto;
    margin-right: auto;
}

.tc-login-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tc-form-field label {
    display: block;
    font-size: var(--tx-fs-md, 14px);
    font-weight: 600;
    color: var(--tc-text);
    margin-bottom: 6px;
}

.tc-login-form .tc-input-wrap input {
    padding-left: 12px;
    padding-right: 36px;
}

.tc-btn-login-submit {
    width: 100%;
    margin-top: 2px;
    background: var(--tc-gradient-accent);
    box-shadow: var(--tc-shadow-accent);
    padding: var(--tx-control-py, 0.5rem) var(--tx-control-px, 1.125rem);
    font-size: var(--tx-control-fs, var(--tx-fs-md, 14px));
    min-height: var(--tx-control-h, 2.5rem);
    flex-direction: row-reverse;
    box-sizing: border-box;
}

/* Nút chính trên login / tải Token Signer — cùng kích thước */
.tc-main-narrow .tc-download-app-card .tc-btn-download.tc-btn-app {
    display: inline-flex;
    width: 100%;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
    padding: var(--tx-control-py, 0.5rem) var(--tx-control-px, 1.125rem);
    font-size: var(--tx-control-fs, var(--tx-fs-md, 14px));
    font-weight: 600;
    min-height: var(--tx-control-h, 2.5rem);
    border-radius: 8px;
    box-sizing: border-box;
}

.tc-alert-success {
    margin-top: 20px;
    background: linear-gradient(90deg, rgba(90, 143, 158, 0.1), rgba(107, 158, 174, 0.08));
    color: var(--tc-accent-dark);
    border: 1px solid rgba(90, 143, 158, 0.25);
}

.tc-alert-success svg { fill: var(--tc-accent); }

.tc-loading-popup {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 51, 102, 0.35);
    backdrop-filter: blur(3px);
    display: none;
    pointer-events: none;
}

.tc-loading-popup.is-visible {
    display: block;
    pointer-events: auto;
}

.tc-loading-box {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10000;
    width: auto;
    max-width: calc(100vw - 32px);
    box-sizing: border-box;
    background: var(--tc-surface);
    border-radius: var(--tc-radius-lg);
    padding: 32px 40px;
    text-align: center;
    box-shadow: var(--tc-shadow-lg);
    border: 1px solid var(--tc-border);
}

.tc-loading-box p {
    margin: 16px 0 0;
    font-size: var(--tx-fs-base);
    font-weight: 500;
    color: var(--tc-text);
}

.tc-loading-spinner {
    width: 44px;
    height: 44px;
    margin: 0 auto;
    border: 4px solid var(--tc-border);
    border-top-color: var(--tc-accent);
    border-right-color: var(--tc-primary);
    border-radius: 50%;
    animation: tcSpin .8s linear infinite;
}

.tc-loading-popup.tc-loading-compact {
    background: rgba(0, 51, 102, 0.25);
}

.tc-loading-popup.tc-loading-compact .tc-loading-box {
    padding: 16px 24px;
    border-radius: var(--tc-radius);
    box-shadow: 0 8px 32px rgba(15, 39, 64, 0.18);
    width: auto;
    max-width: 240px;
}

.tc-loading-popup.tc-loading-compact .tc-loading-spinner {
    width: 28px;
    height: 28px;
    border-width: 3px;
}

.tc-loading-popup.tc-loading-compact .tc-loading-box p {
    margin: 10px 0 0;
    font-size: var(--tx-fs-md, 14px);
}

@keyframes tcSpin { to { transform: rotate(360deg); } }

/* ── Responsive ── */
@media (max-width: 768px) {
    .tc-header-inner { padding: 24px 16px 40px; }
    .tc-main { padding: 0 16px 32px; }
    .tc-topbar { gap: 12px; }
    .tc-brand-text span { display: none; }
    .tc-hero { padding: 1.25rem 1.25rem; }
    .tc-hero h2 { font-size: var(--tx-fs-2xl); }
    .tc-hero p { font-size: var(--tx-chrome-fs); }
    .tc-topbar-nav { width: 100%; }
    .tc-btn-nav { flex: 1 1 auto; justify-content: center; padding: 10px 12px; font-size: var(--tx-chrome-fs); }
}

@media (max-width: 640px) {
    .tc-header-inner { padding: 20px 16px 40px; }
    .tc-main { padding: 0 16px 32px; }
    .tc-search-card,
    .tc-login-card {
        padding: 1.15rem 1.1rem;
        border-radius: 14px;
        box-shadow: var(--tx-mobile-shadow, 0 4px 18px rgba(15, 39, 64, 0.08));
        border: 1px solid var(--tx-border, #dde3ea);
        position: relative;
        overflow: hidden;
    }
    .tc-search-card::before,
    .tc-login-card::before {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--tx-mobile-accent-line, linear-gradient(90deg, var(--tx-primary, #6d28d9), var(--tx-primary-light, #a78bfa)));
        pointer-events: none;
    }
    .tc-search-form { flex-direction: column; }
    .tc-btn-search,
    .tc-btn-login-submit {
        width: 100%;
        min-height: 44px;
        border-radius: 12px;
        font-weight: 650;
        box-shadow: 0 2px 10px rgba(15, 39, 64, 0.1);
        transition: transform 0.12s ease, filter 0.15s ease;
    }
    .tc-btn-search:active,
    .tc-btn-login-submit:active {
        transform: scale(0.98);
        filter: brightness(0.97);
    }
    .tc-pdf-frame-wrap iframe { height: 560px; }
    .tc-actions { flex-direction: column; }
    .tc-btn-download { justify-content: center; }
    .tc-btn-end { width: 100%; }
    .tc-tncn-preview-wrap {
        padding: 8px;
    }
    .tc-info-grid {
        grid-template-columns: 1fr;
    }
}

/* Laptop thấp — layout gọn login (font: tax3s-tokens.css) */
@media (max-height: 800px) and (min-width: 768px) {
    body.tracuu-page .tc-header-inner {
        padding: 14px 16px 20px;
    }

    body.tracuu-page .tc-topbar {
        margin-bottom: 14px;
        gap: 10px;
    }

    body.tracuu-page .tc-hero {
        padding: 0.75rem 1rem;
    }

    body.tracuu-page .tc-main {
        padding: 0 16px 20px;
    }

    body.tracuu-page .tc-login-card,
    body.tracuu-page .tc-search-card {
        padding: 14px 16px;
    }

    body.tracuu-page .tc-btn-nav,
    body.tracuu-page .tc-theme-picker select,
    body.tracuu-page .tc-form-field input,
    body.tracuu-page .tc-btn-search,
    body.tracuu-page .tc-btn-login-submit {
        min-height: var(--tx-control-h);
        padding: var(--tx-control-py) var(--tx-control-px);
    }

    body.tracuu-page .tc-brand-logo img {
        max-height: 32px;
    }
}